SEPARATION AND PURIFICATION TECHNOLOGY
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2017
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IF 3.359
Wei Li,Chang Shi,Ayang Zhou,Xiao He,Yawei Sun,Jinli Zhang
For efficient recovery of lithium from brines, a composite nanofiltration (NF) membrane with positively charged skin layer (PA-B) was first synthesized via interfacial polymerization between branched poly(ethylene imine) (BPEI) and trimesoyl chloride (TMC) on the support of crosslinked polyetherimide, and the separation performance was assessed for simulative brine of mixed LiCl/MgCl 2 solution. To improve the permselectivity of Li + against Mg 2+ , then we adopted EDTA to modify the as-prepared positively charged PA-B NF membrane. The optimal EDTA modified NF membrane PA-B2-E3 showed the separation factor S Li , Mg about 9.2 for the LiCl/MgCl 2 mixed solution with a Mg 2+ /Li + mass ratio of 24, with excellent stability within 36 h filtration, which would have promising applications in the recovery of Li from brine.
研究领域:
材料科学
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环境工程
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INDUSTRIAL CROPS AND PRODUCTS
·
2023
·
IF 5.9
Xinyi Xie,Xiangyu Wang,Xinping Ouyang,Qiyu Liu,Xueqing Qiu
The conventional fractionation of lignocellulose is generally carried out at high temperatures, high acid or alkali, or using organic solvents due to the rigid matrix of lignocellulose and crystallinity of cellulose, leading to the condensation of lignin and environmental pollution, and hindering the further value-added utilization of lignin. In this work, a rapid fractionation method was proposed, in which hemicellulose and cellulose (holocellulose) were first dissolved and partially hydrolyzed in acidified LiCl molten salt hydrates, followed by a filtration process to isolate the lignin solid with a purity of 88.3%. It was found that the dissolution of holocellulose required the addition of a small amount of acid to break the cellulose chain into short chains. Due to the small amount of acid added and the rapid dissolution, the obtained lignin has as high as 89.5% of β-O-4 bond content close to the theoretical value, suggesting that a promising native lignin structure was preserved. The isolated lignin can be selectively depolymerized into monophenol over Ru/C catalyst with a high yield of 24.2%. In addition, the dissolved holocellulose without containing lignin was selectively hydrolyzed into sugars in acidified LiCl molten salt hydrates, giving 63.1% of xylose , 43.9% of glucose, 29.5% of xylan oligomers, and 48.2% of glucan oligomers, respectively.
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JOURNAL OF MOLECULAR LIQUIDS
·
2023
·
IF 6
Can Xu,Xianwei Hu,Jiangyu Yu,Pengwei Li,Aimin Liu,Shaohua Luo,Zhongning Shi,Zhaowen Wang
The study on the ionic structure of SmCl 3 -KCl-LiCl molten systems is of guiding significance for the practical production of metal samarium and samarium alloys via Molten salt electrolysis (MSE) using this system as electrolyte. Based on density functional theory (DFT), the possible ionic groups in SmCl 3 -KCl-LiCl molten system were simulated by Gaussian and GaussView program and their theoretical Raman spectra were calculated. The calculated spectra were then compared with the experimental Raman spectra of molten 0.1–2 mol% SmCl 3 -(41 mol% KCl-59 mol% LiCl) to identify the ionic groups which might have existed. It is thought that SmCl 4 - , SmCl 6 3- , Sm 2 Cl 8 2- and Sm 2 Cl 7 - exist in the molten system. When the temperature is unchanged, the “lifetime” of SmCl 6 3- is reduced while those of SmCl 4 - , Sm 2 Cl 8 2- and Sm 2 Cl 7 - is increased with the increase of SmCl 3 content. Within the temperature range of 773–809 K, when the content of SmCl 3 remains unchanged, the “lifetime” of these complex ions decreases with the increase of temperature. Besides, the relative content of SmCl 6 3- decreases with the increase of temperature. The wave function analysis of the four kinds of Sm-Cl ionic groups was also carried out using Multiwfn program. The net atomic charge of each ionic group, the direction of electron migration during the formation of the ionic groups, as well as the most prone to electrophilic and nuclear reactions of each ionic group, and the order of bond breaking during chemical reactions for the four groups were obtained.
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JOURNAL OF POWER SOURCES
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2022
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IF 9.794
Wenjin Ding,Qing Gong,Shengzhi Liang,Ralf Hoffmann,Hao Zhou,Haomiao Li,Kangli Wang,Tianru Zhang,Alfons Weisenburger,Georg Müller,Alexander Bonk
Multi-cationic molten chloride salt mixtures such as LiCl–KCl–NaCl are promising molten salt electrolytes for sodium liquid metal batteries (Na-LMBs). In this work, the melting temperature of LiCl–KCl–NaCl was determined with Differential Scanning Calorimetry (DSC), assisted by FactSage™ simulation and confirmed by a melting point apparatus OptiMelt™. It is founded that the eutectic LiCl–KCl–NaCl can be considered as a pseudo-binary system with LiCl–KCl eutectic (59.2–40.8 mol.%) as the solvent and NaCl as the solute. When NaCl is not more than 9 mol.%, the eutectic LiCl–KCl–NaCl salt mixture has a melting temperature of ∼350 °C as that of LiCl–KCl eutectic. In addition, the exchange reactions between anode Na metal with LiCl–KCl–NaCl molten salt electrolyte were studied at the temperature of 400–500 °C quantitatively. The equilibrium constants of the exchange reactions were determined by chemical analysis on the salt and metal phases with Ion Chromatography (IC). A one ampere-hour (Ah) Na-LMB test cell shows promising energy storage performance. Moreover, the phenomena in the cell test can be explained convincingly, combining the results of exchange reactions and the pseudo-binary-system theory. The findings on the multi-cationic molten salt electrolytes for Na-LMBs in this work could support further development of other liquid metal batteries.
研究领域:
材料科学
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电化学
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储能技术
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高影响因子
CELLULOSE
·
2022
·Vol. 30
·期 2
·801-813
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IF 6.123
Wei Chunjie,Liu Gang,Xie Yujiao,Sun Zhongyuan,Liu Chang,Song Feng,Cui Hongyou
Molten salt hydrate (MSH) is a good solvent for cellulose dissolution and an effective catalyst for cellulose conversion. In this work, a series of MSH was evaluated in terms of cellulose dissolvability, regeneration performance, and catalytic activity in cellulose conversion into 5-hydroxymethylfurfural (HMF). ZnBr 2 ·3H 2 O–LiCl·3H 2 O showed good performance on cellulose dissolution and conversion. The effects of ZnBr 2 ·3H 2 O concentration, reaction temperature, and time on cellulose conversion into HMF in ZnBr 2 ·3H 2 O–LiCl·3H 2 O were optimized, and 48.7% HMF yield was reached at 60 wt.% ZnBr 2 ·3H 2 O. The species of ZnBr 2 ·3H 2 O–LiCl·3H 2 O were analyzed, and the function of species concentration was correlated with the product yield from the conversion of fructose. It was found that Br − and H + were the active species for fructose dehydration into HMF. ZnBr 3 − and H + catalyzed the conversion of fructose into furfural, which competed with the production of HMF. The reaction mechanism was proposed to understand the cooperate of species in MSH for cellulose conversion.
研究领域:
化学工程
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催化
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生物化工
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ELECTROCHIMICA ACTA
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2016
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IF 4.803
Wei Li,Zeng Chen,Chaochao Wei,Wenping Kong,Binghua Xu,Xiyang Jia,Chunli Diao,Shengjun Li
An electrochemical method was developed for the formation of Al-Cu alloys. The electrodeposition of aluminum on Mo and Cu substrates was studied using cyclic voltammetry in molten LiCl-KCl-AlCl 3 (2 wt.%). During the cathodic scan of the cyclic voltammograms, three different Al-Cu alloys were observed before pure Al formed on the Cu substrate. The electrochemical formation processes were studied using square wave voltammetry and open circuit chronopotentiometry. The products of the different reduction processes were identified using XRD. The XRD results indicated that three different Al-Cu intermetallic compounds, Al 4 Cu 9 , AlCu, and Al 2 Cu, were obtained using electrochemical deposition in the molten salt system.
研究领域:
材料科学
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电化学
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DOI
高影响因子
BIOCHEMICAL GENETICS
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2024
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IF 2.1
Dai Jie,Shen Hai-lin,Li Jia,Zhou Yong,Dong Zheng-xie,Zhu Xiang-yang
Status epilepticus is a severe neurological emergency that often leads to long-term neuronal damage and functional impairment. Gastrodin is a compound widely used in traditional Chinese medicine with potential neuroprotective effects. This study aims to investigate the effects of GAS on neuroinflammation and injury caused by LiCl/pilocarpine-induced SE in young rats. SE in rats was induced using the LiCl/pilocarpine model. Morris water maze and Y-maze experiments were used for the behavioral test of rats. Enzyme-linked immunosorbent assay was utilized to quantify the levels of interleukin (IL)-1β, IL-6, and IL-8 levels, and biochemical kits assessed the levels of malondialdehyde, superoxide dismutase and glutathione peroxidase (GSH-px) in hippocampus tissues. Additionally, Western blot analysis was performed to evaluate the protein expression levels of p-p65, p65, p-IκBα and IκBα, which are key factors of the nuclear factor kappa B (NF-κB) signaling pathway. Compared to the control group, the SE group rats exhibited reduced learning and memory abilities. Markedly elevated levels of inflammatory factors (IL-1β, IL-6, and IL-8). The expression levels of p-p65 and p-IκBα were significantly upregulated, while IκBα levels were notably decreased. Following GAS treatment, the latency of seizure onset was significantly shortened, the incidence of SE was significantly reduced and the severity of nerve injury was alleviated. Additionally, both the inflammation levels and the oxidative stress were significantly decreased, primarily through inhibition NF-κB signaling pathway. These findings suggest that GAS may be a potential therapeutic agent for treating SE.
研究领域:
神经科学
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药理学
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传统中药
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DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2026
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IF 7.8
Qiqi Yang,Junjie Liu,Fangya Zhang,Jie Hu,Qiyang Wang,Manqing Yan,Ying Wang
Temperature-stimulus-responsive hydrogels with outstanding mechanical and electrical properties have attracted extensive attention in the field of health detection and information encryption due to their unique environmental responsiveness. In this work, a flexible, conductive, tunable thermoresponsive, and antifreezing poly(acrylic acid-acrylamide)/gelatin/lithium chloride (P(AA-AM)/Gelatin/LiCl, PGL) hydrogel was fabricated via a simple one-pot approach. Functional regulator LiCl effectively enhances the mechanical properties of the PGL hydrogel through salting-out effect and phase separation. Also, the transparent-to-opaque transition is reversible and repeatable, and the phase transition temperature can be sensitively adjusted by LiCl mass in the PGL hydrogels. Especially, the PGL0.8 hydrogel with a strength of 180 kPa, a strain of 620%, and a conductivity of 2.16 S m–1 can serve as the strain sensor (gauge factor of 1.95) and temperature sensor (temperature resistance coefficient of 2.05%/°C at 25–45 °C). Benefiting from its excellent performance, the as-prepared PGL hydrogels can capture real-time electrical signals, including human joint motions, subtle physiological movements, and temperature fluctuations, when utilized as wearable multifunctional sensors. Therefore, the tunable thermoresponsive and antifreezing hydrogel holds promise for human health monitoring and information encryption, meeting theoretical and practical application requirements of flexible wearable sensors.
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PubMed
高影响因子
ADVANCED FUNCTIONAL MATERIALS
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2026
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IF 19.9
Xiangyi Zhang,Zihan Xing,Tong Wang,Limin Wu
Passive radiative cooling provides a sustainable, zero-energy cooling pathway, yet it faces a fundamental challenge in humid or cloudy conditions due to the blockage of the atmospheric transparency window and increased downward atmospheric radiation. Herein, we present a hierarchical Janus bilayer metafabric (TS/PLU) that synergistically combines radiative and evaporative cooling for thermal management with humidity resilience. Integrating a hydrophobic TPU/h-SiO 2 reflection layer with a hygroscopic PAN/LiCl@UiO-66 regulation layer achieves superior solar reflectance (>96%), high atmospheric-window emissivity (96.6%), and moisture capture and evaporation. Crucially, a “harvest-storage-release” mechanism is enabled by UiO-66-confined LiCl, mitigating deliquescence and salt leakage while facilitating heat dissipation even when radiative power is attenuated by high humidity. Asymmetric wettability ensures unidirectional water transport, preserving the radiative function of the hydrophobic top layer. Outdoor tests demonstrate a maximum sub-ambient temperature reduction of 13.4°C under sunny conditions, with a net radiative cooling power of 132.87 W m −2 . The LiCl@UiO-66 incorporation contributes an additional 5.1°C cooling enhancement relative to non-hygroscopic controls. Combined with mechanical robustness (≈370% elongation) and washing durability, this multimodal strategy offers a material-level proof of concept for thermal management featuring humidity resilience and shows potential relevance to personal cooling, outdoor thermal protection, and building-envelope cooling.
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SEPARATION AND PURIFICATION TECHNOLOGY
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2026
·
IF 9.1
Mengchen Li,Shuo Gao,Shunlong Xu,Junsu Jin,Junteng Liu,Hong Meng
Atmospheric water harvesting has emerged as a promising approach for addressing freshwater scarcity in arid regions. However, conventional hygroscopic salts suffer from leakage and agglomeration, while powder adsorbents often exhibit severe packing limitations that hinder vapor transport. Herein, a spherical composites adsorbent (KMF-1@LiCl-SA) was developed by confining LiCl within the pores of the KMF-1 and further shaping the composites using a sodium-alginate–based crosslinked network. Notably, the composites can be simply synthesized through a mild and scalable preparation process, which is advantageous for practical large-scale applications. The confinement of LiCl within KMF-1 pores enhances water adsorption under low humidity, while the three-dimensional porous SA network effectively prevents particle agglomeration and improves vapor diffusion pathways. As a result, the composites exhibits a high-water uptake of 0.826 g g −1 at 298 K and 30% RH, which is 2.75 times higher than pristine KMF-1. Dynamic adsorption experiments reveal that the shaped composites delivers a water vapor adsorption rate of 0.92 g g −1 h −1 under an airflow of 1780 mL min −1 at 298 K and 22% RH, representing a 60 times enhancement compared with static adsorption under identical conditions, thereby underscoring its promise for practical AWH applications. More importantly, the shaped spherical adsorbent significantly alleviates the packing effect compared with powdered materials, leading to improved adsorption kinetics under practical loading conditions. The material also demonstrates excellent adsorption–desorption reversibility, cycling stability, and structural robustness. This work provides a practical strategy for integrating salt-confined MOFs with polymer shaping networks to develop high-performance adsorbents for AWH.
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JOURNAL OF ALLOYS AND COMPOUNDS
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2025
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IF 6.3
Mei Li,Zhixiang Shan,Rugeng Liu,Meng Zhang,Wei Han
The electrochemical investigation of Ce(III) was carried out on W, Sn film and liquid Sn electrodes in LiF-LiCl eutectic by a variety of electrochemical methods. It was determined that Ce(III) was reduced to metallic Ce on W electrode via a one-step three-electron transfer, which was a reversible process controlled by diffusion. The diffusion coefficient of Ce(Ⅲ) in LiF-LiCl eutectic was estimated by CV and CP, while the diffusion activation energy was calculated to be 20.86 kJ mol −1 and 20.95 kJ mol −1 , respectively. The electrochemical behavior of Ce(Ⅲ) was studied on Sn film electrode by CV and OCP. Eight alloy compounds Ce x Sn were obtained due to the underpotential deposition of Ce on the pre-deposited Sn film electrode. The activities of Ce in Ce x Sn and standard Gibbs formation energies of Ce x Sn were evaluated, respectively. Moreover, on Sn film electrode, the electrochemical extraction of Ce was performed at −1.5 V. XRD, SEM and EDS results exhibited the formation of CeSn 3 and Ce 2 Sn 5 . On liquid Sn electrode, the reduction current of Ce appeared at about −1.2 V and reached a peak at about −1.4 V. The electrochemical extracting Ce was also conducted on liquid Sn electrode at −1.3 V and CeSn 3 was obtained. The extraction rates and efficiencies of Ce on liquid Sn electrode were estimated using ICP-AES at different durations. It was found that as the extraction proceeded, the extraction rate decreased, while the extraction efficiency increased. The extraction efficiency reached over 98 % after electrolysis for 10 h.
研究领域:
冶金学
·
电化学
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高影响因子
Materials Advances
·
2025
·
IF 4.7
Not Liza,Md Homaune Kabir,Mohasin Kabir,Nuramurtada Rafi,ruidong xu,Md A Rahman,Tarikul Islam,Mingwei Tian
This work presents the successful development of a flexible, fabric-integrated pressure sensor based on a woven cotton substrate and a polyacrylamide-LiCl (PAAm-LiCl) plain ionic hydrogel, synthesized via 2 free-radical polymerization. The composite sensor was fabricated by uniformly coating the hydrogel onto woven fabric electrodes, forming an ionic conductive network capable of capacitive pressure sensing. A comprehensive series of characterizations confirmed the performance of the sensor and material integrity. Scanning Electron Microscopy (SEM) revealed a densely microporous surface structure that promotes enhanced ion transport. Fourier Transform Infrared (FTIR) spectroscopy confirmed the presence of characteristic O-H, C=O, and C-O functional groups, indicating hydrogen bonding, water retention, and the integration of polyacrylamide and cellulose components. Thermogravimetric Analysis (TGA) demonstrated excellent thermal stability with major decomposition occurring at elevated temperatures, validating the robustness of the composite under thermal stress. Mechanical testing confirmed strong selfadhesive properties across diverse substrates, improving versatility for integration in practical applications. The pressure-sensing performance was validated through sensitivity analysis, dynamic and static gradient pressure response, frequency response under cyclic loading, and durability testing over 10,000 cycles. The sensor displayed rapid response and repeatability under varying pressure and frequency conditions, confirming its reliability and long-term functionality. These results collectively demonstrate the effective synthesis and integration of PAAm-LiCl hydrogel with woven fabric, leading to a stable, sensitive, and thermally durable pressure sensor. The developed system holds significant potential for use in wearable electronics, soft robotics, healthcare monitoring, and interactive human-machine interface technologies.
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